EP0012660B2 - Dispositif de protection de l'embouchure d'un four rotatif - Google Patents

Dispositif de protection de l'embouchure d'un four rotatif Download PDF

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Publication number
EP0012660B2
EP0012660B2 EP79400952A EP79400952A EP0012660B2 EP 0012660 B2 EP0012660 B2 EP 0012660B2 EP 79400952 A EP79400952 A EP 79400952A EP 79400952 A EP79400952 A EP 79400952A EP 0012660 B2 EP0012660 B2 EP 0012660B2
Authority
EP
European Patent Office
Prior art keywords
ring
shell
kiln
flange
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP79400952A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0012660A1 (fr
EP0012660B1 (fr
Inventor
Alain Chielens
Bernard Boussekey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fives Cail Babcock SA
Original Assignee
Fives Cail Babcock SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9215787&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0012660(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to AT79400952T priority Critical patent/ATE144T1/de
Publication of EP0012660A1 publication Critical patent/EP0012660A1/fr
Publication of EP0012660B1 publication Critical patent/EP0012660B1/fr
Application granted granted Critical
Publication of EP0012660B2 publication Critical patent/EP0012660B2/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/224—Discharge ends

Definitions

  • the present invention relates to a device for protecting the mouth of a rotary tubular oven at the outlet end of hot products.
  • the known protection devices consist of a ring formed of several segments fixed on the end of the shell of the oven and cooled by air circulation. This ring is brought to very high temperatures and, if the treated products are abrasive, subjected to significant wear. Its lifespan is therefore relatively short and the segments which constitute it must be replaced frequently. Since these segments are fairly complex parts, generally made of cast steel, their replacement is costly. In addition, certain types of attachment make disassembly of worn or damaged segments very difficult.
  • the object of the invention is to provide a simple and less expensive protection device.
  • the protective device which is the subject of the invention is characterized in that it consists of a refractory concrete ring which covers the internal surface of the end of the furnace shell and the front face of a flange forming part of a metal support fixed on the end of the furnace shell, this ring being attached to said support by anchoring elements fixed on the latter.
  • the part of the shell covered by the concrete ring is limited, towards the interior of the furnace, by an annular stop, welded on the ferrule and serving as a stop for the briquetting of the furnace so as to eliminate parasitic thrusts on the 'ring.
  • the connections between the anchoring elements and the ferrule or the flange have a certain clearance allowing the differential expansions of the ring, the ferrule and the flange; expansion joints are provided on the ring.
  • a belt attached to the outer edge of the flange serves as a peripheral support for the ring.
  • This belt can be extended towards the rear of the flange and is connected to a ferrule concentric with the furnace ferrule and defining with it a passage with annular section for the circulation of cooling air.
  • this passage is divided into a outward path and a return path by a third ferrule placed between the two others and ending at a certain distance from the flange, so that the cooling air using the outward path comes to lick the face. back of the flange then flows through the return path, along the furnace shell.
  • the ring is divided into two parts by a cylindrical seal located approximately in the extension of the interior surface of the ferrule.
  • a cylindrical seal located approximately in the extension of the interior surface of the ferrule.
  • the outer part of the ring can be made of precast concrete blocks secured to a metal support which is fixed on the end of the ferrule, by means of bolts, keys or any other known fixing means; the strap and the belt are then formed of elements constituting said support.
  • This figure shows the end of a rotary tubular oven which opens into a fixed cover fitted with a burner, not shown, entering the oven.
  • the hot products are evacuated by gravity at this end of the oven.
  • the oven consists of a metal ferrule 16 and an inner lining of refractory bricks 18. This lining is stopped at a certain distance from the end of the ferrule against a ring 20 forming a stop which is welded inside the ferrule.
  • the oven is surrounded by two concentric ferrules 22 and 24 assembled and fixed to the ferrule 16 by means of elastic spacers.
  • the end of the shell 16 is protected by a refractory concrete ring 36.
  • a cylindrical joint 42 is provided in the ring 36; this joint divides the ring into an inner part and an outer part. Joints located in radial planes are provided in the two parts of the ring to prevent dynamic deformations of the shell from causing the concrete ring to break.
  • the outer part of the ring is formed from precast concrete blocks 44. These blocks are molded on a support to which they are attached by anchoring elements 38 mounted with play on this support.
  • This support is formed of three welded parts: a cylindrical part 48 whose end rests on the shell 16 of the furnace and which is provided with lugs 49 fixed on this shell by means of pins 50 and keys 52, a part 54 arranged perpendicular to the part 48 and having the shape of a ring segment and a part 56 of cylindrical shape welded to the edge of the part 54, perpendicular to the latter.
  • the pieces 54 form an outer flange whose plane is perpendicular to the axis of the furnace and the pieces 56 form a belt extending on either side of the flange.
  • the rear part of this belt surrounds the adjacent end of the ferrule 24 with slight play.
  • the end of the ferrule 22 is spaced from the flange so as to establish communication between the two annular section passages 30 and 32 formed by the ferrules 16, 22 and 24. Fresh air supplied by the external passage 30 can so come and lick the flange then the ferrule 16. to cool them.
  • the inner part 36 ′ of the ring is cast after the blocks 44 have been put in place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Drying Of Solid Materials (AREA)
  • Soil Working Implements (AREA)
  • Insulated Conductors (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Jellies, Jams, And Syrups (AREA)
EP79400952A 1978-12-07 1979-12-04 Dispositif de protection de l'embouchure d'un four rotatif Expired EP0012660B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79400952T ATE144T1 (de) 1978-12-07 1979-12-04 Schutzvorrichtung fuer das auslaufende eines drehofens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7834456 1978-12-07
FR7834456A FR2443654A1 (fr) 1978-12-07 1978-12-07 Dispositif de protection de l'embouchure d'un four rotatif

Publications (3)

Publication Number Publication Date
EP0012660A1 EP0012660A1 (fr) 1980-06-25
EP0012660B1 EP0012660B1 (fr) 1981-08-05
EP0012660B2 true EP0012660B2 (fr) 1984-11-21

Family

ID=9215787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400952A Expired EP0012660B2 (fr) 1978-12-07 1979-12-04 Dispositif de protection de l'embouchure d'un four rotatif

Country Status (7)

Country Link
US (1) US4295825A (ja)
EP (1) EP0012660B2 (ja)
JP (1) JPS5579984A (ja)
AT (1) ATE144T1 (ja)
DE (1) DE2960586D1 (ja)
DK (1) DK151836C (ja)
FR (1) FR2443654A1 (ja)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494827A2 (fr) * 1980-11-21 1982-05-28 Fives Cail Babcock Dispositif de protection de l'embouchure d'un four rotatif
DE3319083A1 (de) * 1983-05-26 1984-11-29 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und vorrichtung zur herstellung von kalkreichen bindemitteln, insbesondere von zementen
US4836775A (en) * 1985-12-23 1989-06-06 Ppg Industries, Inc. Air cooled rotary kiln collar
FR2618215B1 (fr) * 1987-07-17 1990-03-30 Fives Cail Babcock Dispositif de protection de l'embouchure d'un four rotatif.
FR2634545B2 (fr) * 1987-07-17 1991-03-29 Fives Cail Babcock Dispositif de protection de l'embouchure d'un four rotatif
US4975049A (en) * 1989-06-14 1990-12-04 General Refractories Company Refractory block for rotary kiln
US5122189A (en) * 1990-04-13 1992-06-16 Hoke M. Garrett Manufacture of cement clinker in long rotary kilns by the addition of volatile fuels components directly into the calcining zone of the rotary kiln
US5156676A (en) * 1990-04-13 1992-10-20 Hoke M. Garrett Manufacture of cement clinker in long rotary kilns by the addition of volatile fuel elements directly into the calcining zone of the rotary kiln
DE4325303A1 (de) * 1993-07-28 1995-02-02 Kloeckner Humboldt Deutz Ag Drehrohrofen zur Wärmebehandlung fließfähiger Materialien
GB9615077D0 (en) * 1996-07-18 1996-09-04 Blue Circle Ind Plc Improvements in rotary kilns
DE102005052753A1 (de) * 2005-11-04 2007-05-10 Polysius Ag Anlage und Verfahren zur Herstellung von Zementklinker
WO2007123525A1 (en) * 2006-04-24 2007-11-01 Joseph Cohen Snow thrower with an ergonomic handle
US8523563B1 (en) * 2008-01-07 2013-09-03 Anthony Nardella Kiln brick protective collar
CN101701765B (zh) * 2009-09-22 2012-12-26 洛阳新安电力集团炭素有限公司 回转窑窑头护板的改进加固方法
JP5457906B2 (ja) * 2010-03-29 2014-04-02 株式会社神戸製鋼所 ロータリーキルンの出口側端部における金物取付構造
JP5778474B2 (ja) * 2011-03-23 2015-09-16 Jx日鉱日石金属株式会社 円筒炉内壁構造体及び円筒炉内壁の施工方法
JP5668630B2 (ja) * 2011-07-25 2015-02-12 住友金属鉱山株式会社 ロータリーキルンの出口側構造
EP2795217B1 (fr) 2011-12-23 2016-03-02 Fives FCB Dispositif de refroidissement d'une embouchure d'un four tubulaire rotatif par soufflage d'air frais
JP6518200B2 (ja) * 2016-02-02 2019-05-22 Ｊｘ金属株式会社 ロータリーキルン炉の耐火物構造の施工方法
USD889628S1 (en) 2019-04-24 2020-07-07 Anthony Nardella Kiln brick protective collar with adjustable tab
USD892297S1 (en) 2019-04-24 2020-08-04 Anthony Nardella Kiln brick protective collar
USD889629S1 (en) 2019-04-24 2020-07-07 Anthony Nardella Kiln brick protective collar
USD910832S1 (en) 2019-04-24 2021-02-16 Anthony Nardella Kiln brick protective collar with tabs
USD907190S1 (en) 2019-04-24 2021-01-05 Anthony Nardella Kiln brick protective collar with apertures
USD910831S1 (en) 2019-04-24 2021-02-16 Anthony Nardella Kiln brick protective collar with adjustable tabs
US11466934B2 (en) 2020-01-22 2022-10-11 Anthony Nardella Hinged kiln brick protective collar
USD951425S1 (en) 2020-01-22 2022-05-10 Anthony Nardella Hinged kiln brick protective collar
USD934408S1 (en) 2020-01-22 2021-10-26 Anthony Nardella Hinged kiln brick protective collar

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US628940A (en) * 1897-07-10 1899-07-18 Edward H Hurry Rotary furnace.
US1690048A (en) * 1926-01-08 1928-10-30 Bentley John Henry Rotary kiln and furnace
US1998492A (en) * 1932-05-25 1935-04-23 Christensen Aage Air-sealed joint for rotary incinerator drums
US2084713A (en) * 1936-03-07 1937-06-22 Quigley Co Rotary kiln
US2169512A (en) * 1938-09-23 1939-08-15 Smidth & Co As F L Rotary kiln
US2266396A (en) * 1941-05-31 1941-12-16 Allis Chalmers Mfg Co Rotary kiln
DE900671C (de) * 1951-01-27 1953-12-28 Miag Vertriebs Gmbh Gekuehlter Auslauf fuer Drehoefen
DE938839C (de) * 1953-05-08 1956-02-09 Miag Vertriebs Gmbh Gekuehlter Auslauf fuer Drehoefen
US2826403A (en) * 1954-07-17 1958-03-11 Nat Lead Co Cooling arrangements for rotary kilns
US3042389A (en) * 1958-12-15 1962-07-03 Allis Chalmers Mfg Co Air seal for rotating cylinders such as kilns and the like
US3016236A (en) * 1960-06-22 1962-01-09 Allis Chalmers Mfg Co Rotary kiln discharge end construction
US3330546A (en) * 1965-10-21 1967-07-11 Monolith Portland Cement Co Means for holding kiln brick within a rotary kiln
DE1558056B2 (de) * 1967-02-21 1972-12-28 Klöckner-Humboldt-Deutz AG, 5000 Köln Befestigungsvorrichtung fuer auslaufschutzsegmente am luftgekuehlten auslaufring fuer drehrohroefen, insbesondere zur zementherstellung
US3682453A (en) * 1970-11-23 1972-08-08 California Portland Cement Co Rotary kiln nose ring
DE2235560C3 (de) * 1972-07-20 1979-03-29 Karl Steffens Gmbh, 4032 Lintorf Vorrichtung zum Kuhlen des aus metallenen Segmenten bestehenden Auslaufringes eines Drehrohrofens
DE2329061A1 (de) * 1973-06-07 1975-01-02 Kloeckner Humboldt Deutz Ag Luftgekuehlter auslaufring fuer einen drehrohrofen
GB1490130A (en) * 1975-05-23 1977-10-26 Butterley Building Mat Furnace roofs
DE2557846A1 (de) * 1975-12-22 1977-06-30 Hilti Ag Befestigungselement fuer feuerfeste auskleidungen
JPS5618951Y2 (ja) * 1976-06-16 1981-05-06
US4083752A (en) * 1976-11-10 1978-04-11 Monsanto Company Rotary retort
DE2702876C3 (de) * 1977-01-25 1980-07-17 Krupp Polysius Ag, 4720 Beckum Drehrohrofen mit einer Anzahl von Planetenkühlrohren
JPS53142430A (en) * 1977-05-19 1978-12-12 Shinagawa Refractories Co Lining structure at discharge end of rotary kiln

Also Published As

Publication number Publication date
JPS5579984A (en) 1980-06-16
DK151836B (da) 1988-01-04
EP0012660A1 (fr) 1980-06-25
FR2443654A1 (fr) 1980-07-04
US4295825A (en) 1981-10-20
EP0012660B1 (fr) 1981-08-05
ATE144T1 (de) 1981-08-15
FR2443654B1 (ja) 1981-03-20
DK151836C (da) 1988-06-27
DE2960586D1 (en) 1981-11-05
JPS6315515B2 (ja) 1988-04-05
DK519679A (da) 1980-06-08

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